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Why is -NHCOCH3 a weaker activator than -NH2?
AIt is protonated in water
BIt withdraws by +I effect
CNitrogen loses its lone pair
DN lone pair shifts onto C=O
Answer & Solution
Correct answer: D. N lone pair shifts onto C=O
In acetanilide the nitrogen lone pair is shared by resonance with the carbonyl oxygen, so less reaches the ring.
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